/Engine/Source/Developer/TraceAnalysis/Public/Trace/Analyzer.h
For each event subscribed to inOnAnalysisBegin(), the analysis engine will call this method when those events are encountered in a trace log
This analyzer is removed from the analysis session if false is returned.
virtual bool OnEvent ( uint16 RouteId, [EStyle](API\Developer\TraceAnalysis\Trace\IAnalyzer\EStyle) Style, const [FOnEventContext](API\Developer\TraceAnalysis\Trace\IAnalyzer\FOnEventContext) & Context )